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Finding the Fourth Proportional to 533,872.10, 801,002.55 and 218,555.30

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Solution

The fourth proportional to 533,872.10, 801,002.55 and 218,555.30 is: 327,912.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,872.10 : 801,002.55 = 218,555.30 : x
  2. Step 2: Convert to fraction form
    533,872.10/801,002.55 = 218,555.30/x
  3. Step 3: Cross multiply
    533,872.10x = 801,002.55 × 218,555.30
  4. Step 4: Simplify right side
    533,872.10x = 175,063,352,616.02
  5. Step 5: Solve for x
    x = 175,063,352,616.02/533,872.10
  6. Step 6: Final answer
    x = 327,912.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.